Question

what is cathode rays​

Answer 1

Explanation:

Cathode rays (also called an electron beam or an e-beam) are streams of electrons observed in vacuum tubes. ... Cathode rays are so named because they are emitted by the negative electrode, or cathode, in a vacuum tube. To release electrons into the tube, they must first be detached from the atoms of the cathode.

Answer 2

Answer:

a beam of electrons emitted from the cathode of a high-vacuum tube.

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